HP 6125XLG R2306-HP 6125XLG Blade Switch High Availability Configuration Guide - Page 92

Troubleshooting VRRP, An error prompt is displayed, Symptom, Analysis, Solution

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Owner ID : 0000-5e01-1103 Priority : 255 Active : local Forwarder 03 State : Listening Virtual MAC : 000f-e2ff-4013 (Learnt) Owner ID : 0000-5e01-1105 Priority : 127 Active : FE80::3 Forwarder Weight Track Information: Track Object : 1 State : Positive Weight Reduced : 250 The output shows that when Switch A fails, Switch B becomes the master because it has a higher priority than Switch C, and the VF for virtual MAC address 000f-e2ff-4011 is removed. Troubleshooting VRRP An error prompt is displayed Symptom An error prompt "The virtual router detected a VRRP configuration error." is displayed during configuration. Analysis This symptom is probably caused by the following reasons: • The VRRP advertisement interval in the packet is not the same as that for the current VRRP group. • The number of virtual IP addresses in the packet is not the same as that for the current VRRP group. • The virtual IP address list is not the same as that for the current VRRP group. • A device in the VRRP group receives illegitimate VRRP packets. For example, the IP address owner receives a VRRP packet with the priority 255. Solution • Modify the configuration on routers in VRRP groups to ensure consistent configuration. • Take fault location and anti-attack measures to eliminate potential threats. Multiple masters appear in a VRRP group Symptom Multiple masters appear in a VRRP group. Analysis It is normal for a VRRP group to have multiple masters for a short time, and this situation requires no manual intervention. If multiple masters coexist for a longer period, it might be because the masters cannot receive advertisements from each other, or because the received advertisements are illegitimate. 87

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87
Owner ID
: 0000-5e01-1103
Priority
: 255
Active
: local
Forwarder 03
State
: Listening
Virtual MAC
: 000f-e2ff-4013 (Learnt)
Owner ID
: 0000-5e01-1105
Priority
: 127
Active
: FE80::3
Forwarder Weight Track Information:
Track Object
: 1
State : Positive
Weight Reduced : 250
The output shows that when Switch A fails, Switch B becomes the master because it has a higher
priority than Switch C, and the VF for virtual MAC address 000f-e2ff-4011 is removed.
Troubleshooting VRRP
An error prompt is displayed
Symptom
An error prompt "The virtual router detected a VRRP configuration error." is displayed during
configuration.
Analysis
This symptom is probably caused by the following reasons:
•
The VRRP advertisement interval in the packet is not the same as that for the current VRRP group.
•
The number of virtual IP addresses in the packet is not the same as that for the current VRRP group.
•
The virtual IP address list is not the same as that for the current VRRP group.
•
A device in the VRRP group receives illegitimate VRRP packets. For example, the IP address owner
receives a VRRP packet with the priority 255.
Solution
•
Modify the configuration on routers in VRRP groups to ensure consistent configuration.
•
Take fault location and anti-attack measures to eliminate potential threats.
Multiple masters appear in a VRRP group
Symptom
Multiple masters appear in a VRRP group.
Analysis
It is normal for a VRRP group to have multiple masters for a short time, and this situation requires no
manual intervention.
If multiple masters coexist for a longer period, it might be because the masters cannot receive
advertisements from each other, or because the received advertisements are illegitimate.